Combined pneumatic lift and force pump.



F. 0. DE HYMEL.

COMBINED PNEUMATIC LIFT AND FORCE PUMP.

APPLICATION FILED MAY 14, 1912.

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UNITED STATES PATENT OFFICE.

FRANKLIN OSCAR DE HYMEL, OF SAN ANTONIO, TEXAS, ASSIGNOR, BY DIRECT ANDMESNE ASSIGNMENTS, OF ONE-FOURTH TO BART C. DE

WITT, OF SUTTON COUNTY,

TEXAS, ONE-HALF TO CATHERINE DE WITT DE HYMEL, OF SAN ANTONIO, TEXAS,ONE-EIGHTH TO JAMES CORNELL, OF SUTTON COUNTY, TEXAS, AND ONE-EIGHTH TO0. F. SEARGEANT, OF KINNEY COUNTY, TEXAS.

Specification of Letters Patent.

Patented May 6, 1913.

Application filed May 14, 1912. Serial No. 697,188.

To all whom it may concern Be it known that I, FRANKLIN OSCAR Dn- HYMEL,a citizen of the United States, and a resident of San Antonio, in thecounty of Bexar and State of Texas, have invented a Combined PneumaticLift and Force Pump, of which the following is a specification;

In the vast arid region lying in the western portion of the UnitedStates and the Gran Mesa Central, or Great Central Valley, of Mexico,agricultural development is only practicable through irrigation, and,although an inexhaustible supply of water exists at a depth of five toforty or more feet and is available for use by digging wells, thus faran economical, easily operated, eflicient, and otherwise satisfactorypower or machine has not been provided for raising the water.

After much study and necessary experiment with workin means, I haveperfected a machine that fu fils all requirements, especially in respectto simplicity and economy of construction, strength, durability, ease oftransportation, and lifting a great volume of water in a short time bycheap power, preferably by use of draft animals, which are everywhereavailable.

The construction, arrangement, and operation of the machine or apparatusembodying my invention are as hereinafter de scribed and illustrated inthe accompanying drawings, in which Figure 1 1s a vertical section ofthat portion of the apparatus which is located in a Fig. 2 is a crosssection on line 22 of Fig. 1. Fig. 3 is a longitudinal section of an airsuction and force pump. Fig. 4 is a diagrammatic plan view illustratinthe invention as applied in connection with a series of wells.

In connection with the water pump proper, I use an air suction and forcepump which comprises a cylinder 1 provided with one or two air inletvalves 2see Fig. 3 and a reciprocating piston 3 having a rod 4 which, inpractice, is connected with gearing adapted to be operated by a draftanimal, or by a motor, as conditions may favor. These parts are, inpractice, referably mounted upon a truck adapted or attachment of adraft animal for convenience of hauling from one point to another whereirrigation is required. Air pipes 5 and 6 are connected with therespective ends of the cylinder l and extend to wells, as shown in Fig.4.

The construction of the portion of the apparatus located in a well willbe under-' stood from Fig. 1; The same is shown inclosed in a metal wellcasing 7, and is preferably supported therefrom by a detachableconnection at the top. The air pipe 5 connects with the top of anair-vacuum cylinder and water receiver 8 whose lower end screws into ahollow casting 9 having. a

series of openings 10 surrounding the 03 1- Upon the portion providedwith these openingsis seated an' all-.-

indersee Fig. 2.

nular valve 11 arranged in guides 12. The lower edge of the hollowcasting 9 is beveled and seats upon the-similarly formed upper edge of ahollow casting 13 which is screwed into a pipe 14 that extends upwardandis supported on the well casing. This pipe has at the to A 15, that wilin practice deliver "into an with and pendent from the lower casting alateral water-discharge pipe 13 and extends into water in the well. A

check valve 17 seats downward in casting 13. The two castings 9 andl3form a water chamber which, in practice, is immersed in, or locatedwithin a few feet of, the water, so that the latter will rise readilyinto it when a vacuum'is formed in the chambers.

The following will now be understood as the operation of the apparatusdescribed. Suppose the piston 3 to be at or near the left hand end ofthe pump cylinder 1, and it be "us to travel to the right, it isapparent t at air will be drawn out of the pipe 5 and cylinder 8, or, inother words, a vacuum will be created in thelatter, so that 1 water willrise in the pipe 16-past thefvalve l7 and gradually fill.thechamberformed by the castings 9, 13', and also. the chamber ofcylinder 8. when the or moves back to the left, the air prevlously takeninto the pumpcylinder 1 will be expelled, and thus drive out of cylinder8 the water which has been previously raised into piston 3T'reverses,-.

it. it being understood that such water will raise the valve 11 and flowinto the pipe 14 and will be discharged through the lateral pipe 1.").

In Fig. 3. the pump cylinder 1 is shown provided with a series ofopenings closed by of the cylinder 1, at points between the middle andends, I secure a variation in expulsive effect as well as 1n suction or11ft.

I therefore propose to arrange the valves.

in one way or the other according to requirements, particularly theheight or distance to which water is to be elevated and discharged intoa ditch or storage tank. It will be understood that the part 14constitutes practically a water-discharge pipe, although the cylinder 8-supported within it will be filled and emptied more than once before thecasing will overflow. The size or diameter of the casing 14 is, however,a matter of judgment, and it may be contracted to a pipe ofcomparatively small capacity.

As shown in Fig. 1, the vacuum cylinder 8 is connected not only with thecasting 9, but, the check valve 17 is attached to the latter, so thatall, together with the annular check valve 11 may be raised from thelower casting 13 a short distance, or completely removed from the well,that is to say, out of the pipe ll. The top of the latter is madedetachable and tackle may be attached to cylinder 8 for hoisting it,when it is required to effect removal of silt or other foreign matterthat has accumulated in the chamber of the hollow castings or in the sace above it. If the pipe 14: is filled with water, it will obviouslyflow downward past valve 17 and thus back into the well casing, uponraising the cylinder 8 and its attach ments a few inches, and in sodoing the water will in many cases wash out and carry down theobstructing sediment or other foreign matter; but if this does nothappen, the cylinder 8 is lifted completely clear of the pipe 14. Itwill be understood that all the parts inclosed in the well casing 7 maybe lowered to any depth required say to a point within 15 feet of thewater. I

Fig. 4 shows the air pump connected with a series of wells, the airpipes 5 and 6 being provided with detachable sections which are screwedon the sections connected directly with the pump cylinder 1.

By the means described, I provide an ideal apparatus for raising waterfrom wells from a depth of 5 to'lOO or more feet and transmitting it toa considerable distance or to a higher point. The apparatus isparticularly available for the semi-arid regions of the Vest and ofMexico and various parts of the earth in view of its economy andsimplicity of construction, its comparatively small cost and ease. oftransportation and operation. It is particularly important in adaptationfor use with draft animals, since these are owned by the small farmerand their use is well understood, whereas gasolenc and other engines arenot only high in first cost, but considerable knowledge and skill arerequired for their successful operation.

The apparatus is particularly adapted for irrigating tracts of 10, 20,50, or even 100 acres and for lifting water from various depths. It maybe easily and quickly shifted from one well or a series of wells toanother, and thus an effective irrigation maintained throughout the drymonths with comparatively little labor and expense.

It will be seen that my invention may be termed single or double inrespect to the valve arrangement and the use of vacuum and waterchambers and that it is adapted for lifting and driving water from oneor more wells or from tanks, lakes, and rivers. The air inlet valve ofthe pump may be placed at any calculated distance from either end of thecylinder as found necessary for lifting a given volume of water to agiven or required height, the valve in such case adjusting itself tovarying conditions, since it operates alternately by pressure of air inthe cylinder and the vacuum at atmospheric pressure. By the automaticaction of the air valve or valves placed at any calculated distance fromthe ends of the pump cylinder, a given volume of air for forcing water,

commensurate with the size or capacity of the cylinder, is obtained. Theoperation of all the valves is automatic and positive. The pump willlift water practically 25 feet, but,

as before intimated, a less distance is desirable.

The air-pump proper hereinbefore described and comprising areciprocating piston and a cylinder having a series of openings providedwith interchangeable screw plu s and air inlet valves has been made thesub ect of another application Serial. No.' 724,937.

lVhat- I claim is z- 1. In an apparatus for the purpose specii watercylinder arranged within the said waand a hollow valved casting seterpipe the latter, the two cured to the bottom of der an castings beingconnected by a separable joint which (permits the vacuum and watercylinits attachments to be lifted clear, as described.

2. In an apparatus for the purpose speci tied. the portion adapted foruse in a well, the same comprising a suspended and removable water pipe,a valved casting attached to the lower end of the same, a vacuum andwater-receiving cylinder arranged within said water pipe and a hollowcasting secured to the bottom of the same and having a check valve thatforms an attachment of the upper casting, the latter with the attachedcylinder and its Valve being supported detachably upon the lowercasting, as described.

3. In an apparatus for the purpose speci- 4 fied, a water pipe adaptedto be located in a well and having a water inlet at its lower endprovided with a downwardly seated valve, a vacuum and water-receivingcylinder provided with a downwardl seated valve, the aforesaid valveseated in t e water inlet being connected with said vacuum cylinder andthe latter and all its attachments being separable from the water pi e,so that they may be raised for removal 0 sediment, as described.

4. In an apparatus for the purpose specified, the combination with awater pipe having an inlet valve at its lower end, of a vacuum and watercylinder provided with a downwardly seated valve and supporteddetachably on the lower head of said water pipe, whereby the vacuumcylinder and its attachments may be raised, as described.

FRANKLIN OSCAR DE HYMEL.

Witnesses:

BART C. DE Wn'r, AMos W. HART.

